Portable IV Tester for Solar Module Field Testing
PV module electrical testing is an important part of solar power plant commissioning, operation and maintenance.
However, not every test can be performed inside a laboratory.
Engineers often need to test modules directly on rooftops, solar farms, storage yards or other outdoor locations.
This is where a portable IV tester can provide a practical solution.
What Is a Portable IV Tester?
A portable IV tester measures the current-voltage characteristics of photovoltaic modules.
By measuring the I-V curve, engineers can evaluate the electrical performance of a PV module and identify abnormal performance during inspection or maintenance.
The portable IV tester from Wuhan Yoha Laser is designed specifically for outdoor PV testing.
Three Voltage Configurations
The product family provides three voltage-range options.
300V Version
The 300V configuration is designed for lower-voltage PV testing applications.
1500V Version
The 1500V version is designed for higher-voltage PV module testing.
The listed configuration provides:
- 0–1500V voltage range
- 0–30A current range
- 0.1W–30,000W nominal maximum power range
2000V Version
The 2000V configuration is designed for applications requiring an extended voltage measurement range.
When selecting the correct version, engineers should consider the maximum open-circuit voltage of the PV system being tested.
4-Wire Measurement
One important feature is the 4-wire testing method.
Four-wire measurement helps reduce the influence of voltage drop in the measurement cables, allowing the tester to collect more accurate electrical characteristics.
Temperature and Irradiance Compensation
Outdoor PV measurements are strongly affected by environmental conditions.
The tester can simultaneously measure temperature and irradiance and automatically perform temperature and irradiance compensation.
The listed 1500V configuration supports:
- Temperature: -30°C to 100°C
- Irradiance: 0–1500W/m²
This helps engineers obtain more useful field measurement data under changing outdoor conditions.
Designed for Outdoor Work
The portable IV tester includes an IP67-rated protective case when closed.
It also contains a 12.6V 6400mAh battery and can operate continuously for up to 12 hours under the stated conditions.
This makes it suitable for:
- Solar power plant O&M
- Rooftop PV inspection
- Project acceptance
- Incoming module inspection
- Aging module evaluation
- PV troubleshooting
Multiple Interfaces
The system provides Type-A, Type-C, RS485, RS232, Gigabit Ethernet and DC power interfaces.
This provides flexibility for data export, external equipment and communication.
A portable IV tester can bring electrical performance testing directly to the PV field.
With 300V, 1500V and 2000V configurations, manufacturers and O&M teams can select a voltage range based on the requirements of their application.
Wuhan Yoha Solar provides portable IV testing equipment for photovoltaic field inspection and O&M applications.
Comments
Post a Comment